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E. B. REQUA. LAMP CHIMNEY.

No; 318.031. Patentd May 19, 1885.

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PATENT OFFICE.

ELIAS B. REQUA, OF JERSEY CITY, NEW J ERSEY.

LAMP-CHIMNEY.

SPECIFIGA'I'ION' forming part of Letters Patent No. 318,031, date May19, 1885.

Application filed April 23, 1884. (No model.)

To all whom it may conccrn:

Be it known that I, ELIAs B. REQUA, a citizen of the United States, anda resident of J ersey City, in the county of Hudson and State of NewJersey, have invented certain new and Vuseful Improvements in Lanips, ofwhich the following is a specification.

The invention relates to improvements in lamps; and it consists,particularly, in the formation of the chimney and in a novel method ofsupport-img same upon the burner.

Figure 1 of the accompanying drawings is acentralvertical transversesection of a burner and chimney embodying the invention. Fig. 2 is anenlarged side view of same, and Figs. 3 and 4 are views of modifiedforms of the chimney.

The burner illustrated is similar to that which forms the subject of aseparate application for Letters Patent of even date herewith, SerialNo. 129,036, the only difference being that in this ap plieation thechimney-retaining flange J is defiected outward, as hereinafterdescribed. The burner consists of the inch tube A, bowl F, foraminousplate Q, fiame-dome X, and defieetor d. The fiange J is deflectedoutward, as indieated in Fig. 1, and is provided with the usual lip, a,and thumb-serew b. The chimney N will be of any suitable Outline incross-section, but preferably oval (which is the form shown in theburner such as described. The lower portion of the chimney will taperinward as at m, so as to conform to and snugly fit the walls of theflange J; and said portion of the chimney is supplied with iudentationsto receive the lip a and thumb-serew b in the custornary manner. Thepurpose of thus conforming` the fiange J and portion m of the chimney isto insure a firm attachment for the chimney, and to prevent any lateralmovement of same upon the burner. Above the portion m the walls of thechimney extend upward and inward, forming a defieetor, d, above whichthe walls pass vertically upward to a point about opposite to the top ofthe fiame, where they turn inward again, forming another defleotor, e,whence they pass upward to the desired height for the chimney, as shownin Fig. 1; or they may be turned inward again to form another defiector,f, as shown in Fig. 3. Any number i of the deflectors may be formedabout the base of the chimney, and their purpose is to constantly directand eompress the air and products of combustion into the flarne,producing thereby a pure white fiame and (the walls above the deflectorsbeing Vertical) preventing any deposition on the interior of thechimney. The defieetor d' turns the outside drafts through the burnerinto the base of the fiame, and the deflector e directs the air into theupper part of the flame, and has the effect of holdingit steady andincreasing its brilliancy. VVhen the defiectors are employed on anoval-shaped chimney the depths of the defiector d' on the two oppositesides thereof will diminish toward the end walls of the chimney, asillustrated in Fig. 2. The upper and lower edges of the chimney areprovided with the. beads w x, as shown. Any desired number of thedeflectors d' e f may be made use of, according to the character of theburner, the effect it is desired to produce on the .fiame, and othercireumstances, and the defiector c may have'the form shown in Figs. 1,2, and 3, or that illustrated in Fig. 4:, as may be preferred. Thedefiectors gradually compress the volume of air within the chimneyaround the flame, and thus hold it steadily in form. The effect of theair when uncontrolled is to have the flame, which, under that condition,would flicker and be irregular, and the purpose of the deflectors on thechimney is to prevent any such result.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. A lamp chimney which is oval in crosssection, and is provided withthe defieetor d' adjacent to the base of the flame, and the deflector e,at a point adjaeent to the upper part of the fiame, the defleetor d'diminishing in depth toward the end walls of the chimney, substantiallyas and for the purposes set forth.

2. A lamp-chimney having a defieetor, d', adj'acent to the base of thefiame, and a defiector, e, at a point adjacent to the top of the flame,those portions of the chimney between and above the deflectors beingVertical, substantially as and for the purposes set forth.

Signed at New York, in the county of New York and State of New York,this 15th day of April, A. D. 1884.

ELAS B. REQUA.

W'itnesses:

HERMAN GUsrow, OHAs. O. GTLI..

